Safe construction.



M. MOSLER & G. BARTELS; SAFE ooNsTRUoTIoN.

l APPLICATION FILED NOYfZB, 1913. 1, 1 1 3,236. Patented oct. 13, 1914.

I 2 SHEETS-gum' 1.

7170665 Nos/e,1

af/ a/fe/J Inventors H1 904mm w, E l Attorney Witnesses: @a W M. MosLER & c. BARTBLS.

` SAFE CONSTRUCTION.

, 9 0 J A 4 M o o t M w.

[r11 20M/LU: S485, AAttorney Wtnesseg: a). Wn. s. @www toi become/jf lwe prove'mentsi `in the wall, @that poi? 101i lower corner oftlesai hf@ Se@ @r1 merely exemplifying, but they have our l In Fig. 5 15, indicates two plates of the preference over other known devices for the P\1l'P.Se-

The structure thus far set forth may constitute a safe with a single thickness of wall and it will, of course, be understood that one side of the safe will be yprovided `with a suitable doorway and door and door accessories.

vOur present invention comprehends the disposition, within the complete safe-wall thus far referred to, of a second safe-wall of similar construction, or a second safe, to express it otherwise, not dependent on the first safe for its integrity, and within this second safe there may be constructed a-third similar safe, and so on for any desired number of 'wall layers, and in this system of construction the only feature necessarily common to allof the safes rwill be such features as pertain to the door-opening at the door and the door accessories. Proceeding with the drawings: 12, indicates a second safe-wall disposed within the y previously described safe-Wall and similarly composed of plates joined edge to edge, kwhereby there would be produced a safe f with two'walls substantially independent of each other, the uniting devices for the edges of, .the plates of the outer safe being disposed in the space between the inner safe and the outer safe. 13, a third safe, constructed substantially like the first and secv. Gnd safe and disposed within the second safe: and 14, a fourth safe of the construction before described and disposed within the third safe, the joints of all the safes breaking joint with each other.

The construction thus far described provides for a safe having four wall thicknesses which are not dependent upon each other except in the matter of mere support and of such door-opening features as may be common to all of the safes. The number of safes which may thus be disposed one within the other is not limitedand while Figs. 3 and 4jillustrate acompound safe of two safe- Velements, and while Fig. 2 illustrates a safe of four safe-elements, our invention comprehends any desirable plurality of safe-elements.

In Figs. 2, 3 and 4 the several safe-elements are quite independentvof each other, in the sense that the fastening means at the plate-joints of one of the safes does not perform as fastening means for the plate-joints of the contiguous safe. But this independence of the fastening means of one safe from the plates of the other ysafe is not essential. For instance, in Fig. 5, we'illustrate the wall-work of twosafes on the general prin- :iple heretofore set forth but in which the fastening devices at the joints of the outer `Eefje are utilized as uniting devices at the 'mints of the plates of the inner safe.

and screwinginto the cover-plate and bars which imite the outer plates. In the illus-4 tration in vF ig. 5 these screws are shown as screwing into both the cover-plate and the bars, and' these parts, being of machinable metal, readily permit of this construction. lf the plates 18 ofthe inner safe are of unmachinable metal then the holes of the screws 19 will require to be cast in the plates.

The construction of compound safes in accordance with our present invention well lends itself to economical and otherwise advanta eous shop procedures, owing to the fact t at, given a compound safe of three components, each of these components may be separately constructed and in any order desired, thus permitting work upon one component to be going on while work upon another component is going on independently or before the other component is started.v Later, either as a sho process or in ultimate erection at the p ace of use, the safe components, having been disassembled for shipment, may be erected in proper order, beginning with the outside component.

The construction of our compound safe or vault is carried forward as follows. The plates forming the sides and corners of the outer component of the safe are formed of unmachinable manganese steel. The plates are assembled edge to edge with the joints between them formed by means disposed exclusively upon the inner surface of the wall, and the result is a safe of undrillable and uncuttable walls, the walls being incapable of separation from each other by operations upon the exterior of the safe. Such a safe is of itself not new but its Wall isof limited thickness owing to the fact that manganese steel castingsy require to be heat treated in order to renderthem useful for safe purposes, and z4 in the case of very thick plates of manganese steel the heat treatment will penetrate fora limited distance only leaving the central portion of the plate in unfit condition. Now, having the completev single thickness safe thus farreferred to, and desiring greater aggragate thickness of walls, we proceed to build a similar complete safe, but of smaller size, within the first safe, this inner safe being formed in a similar l t disposed rwithinthe outer plates and outer vwall plates breaking joint with' the` 10 myeontact withV the uniting devices of the joints between the edges of the inner wall outer plates, and uniting devices disposed on plates, combined substantially as set forth. the inner surfaces'of the inner plates at the v MOSES MOSLER yjoints betweenl them and adapted kto `have t y f CARL BARTELS' their innerl surfaces in contact witheddi t tional edgewise abutting Wall plates having v Witnesses:

their inner edges provided with unitin de- CHAs. J. GRAEBEB, vices, the `joints between the edges o the l `v`Grito. JOHNSON.

- 00M of this potent nity be obtained for ire cents eaoh,lbyaddress1ng the Commissioner ot Patents, Y Washington; l). C. 

